Street-sweeper.



F. S. KOCH. STREET sw'EEPfI. APPLICATION FILED JUNE 9.1915.

4 SHEETS-surfer l.

Patented Apr. :4, 1916.

F. S. KOCH.

STREET SWEEPER.

APPLICATION FILED JUNE 9.

1,178,240. PatentedApm 1916.

' 4 susnsvshz 2.

F. S. KOCH. STREET swEEP'ER. APPLICATION FILED JUNE 9. I9I5.

1,178,240. Pmnwd Apr.4,1916.

4 SIIEETS-SHET 3. ffy. .z

F. S. KOCH.

STREET SWEEPER.

APPLfcArmN man JUNE 9.1915.

rammed Apr. 4,1916.

4 SHEET$-SHEET 4 verating the same.

UNrrED s'inrns PATENT onirica.

' FRANK S. KOCH, OF CHICAGO. ILLINOIS.

ST REET-SW EEYER.

APatentedApr 'I Original application led November 17, 1.919, Serial No. 592,816. Divided and this applicatioii'led'uxie To @ZZ whom it may concern Be it known that I, FRANK KOCH, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful improvements in Street-Sweepers, of which the following is a specification.

My invention relates to street sweeping machines and has for its object the provision of an improved construction of this character, the present application being in effect, a divisionof my prior application, Serial No. 592,816, filed November 17, 1910.

The invention consists in the combinations and arrangements of parts hereinafteudea scribed and claimed.

T he invention will he best understood by reference to the accompanying drawings forming a part of this specification, and in which,

Figure 1 is a side View of a machine em bodying my invention, Fig. 2, a top plan view of the same, with portions molten away, Fig. 3, a section taken on line 3 3 of Fig. 1, Fig. 4, a section taken on line 4-4 of Fig. 1, Fig. 5, a partial vertical transverse section of the machine illustrating a blower housing and brush housing' employed therein, Fig. 6, a detail view of a dustconveyer employed in the machine, and Fig. 7, a section taken on substantially line 77 The preferred form of construction, as illustrated inu the drawings, comprises a suitable frame or platform 8 mounted to travel upon rear wheels 9 and front wheels 10, the front Wheels 10 being provided with a steering Wheel 11 of any usual or desired construction. The rear Wheels 9 are fixed to atransverse shaft or axle 12 driven by means of a pair of sprockets 13 connected by chains 14 Wi'th sprockets 15 loosely mounted on engine shaft 16. Clutch members 17 are also arranged on shaft 16 adjacent sprockets 15 and are operatively connected Wifi. l il cranks 18 and 18 for op- The hell cranks 1S and 18 are connected respectively h v means of l links 19 and 19 with arms 20 and 20 fixed to operating shafts 21 and 21 arranged at the forward end of the frame 8 in convenient 'proximity to steering wheel '11. v-nach of the shafts x21 :ind 21 is equipped with an operating arm 22-22c0perating with Serial No. 33,046.

corresponding quadrants A23-23ihy`ff means of which the clutches 17 bethroivrrinto i and out of operative? relation Vwith Tthe sprockets 15, as will he" readily. understood, to effect driving ofthe:inacliinetV llbeangine shaft 16 is driven byanlordinaryfgaso; 60 lene engine 24, as will bei'readilyfunderstood. pair of vertically swingingjarnis Zis pivotally mountedonfshaft 1,2 l.andaftransverse shaft 26 is mountedv i-nsaid, ainsfA rotating sweeping hrus h2,7 "is secured Aona shaft 2G and extendsv transversely sutstantially the full width of frame 8..;Siveeping brush 27 is inclosed .inea ;housing.2 priovided with notches 29 in fits @ends to permit upward swinging of brush A27,;aswillwloe `70 readily understood. Theffreeends of@ 25 are pivotally connectedA with, r having rack bars 31v adjacent tlieirfupper ends sliding in guides 3 2 andaneshingiyith pinions 33 on the opposite yends cfa transMYf verse shaft 34. Shaft 8.4 lis equipped with a ratchet wheel 35 andharpaifwl, arm hliy means of which said shaft maybe operated `to effect adjustments of-,thefreenndspf 4 arms 25l and thus of-the'hrushj27{ivithl re-,SO spect to the street orA other?Surface,lgip'on'l which the wheels 9 and 1G^rest, I A second pair of verticallysivinginggarms 37 is mounted pivotallyon shaft LS-,and a shaft 38 is inountedin the free ends, of the, B5 arms 37. Shaft 38 carries aconveyer(drum4 39 and a traveling conveyerfQ travlsbver said drum. Conveyer 40 is .in'clcsedjingian upwardly and forwardly extendingzhougmg 41 communicating at its .loweneiidQO housing 28 and another-conveyendrum42' is mounted at the upperlendof,housing 41 upon a shaft 43 extending; transf'ie'rsely thereof and mountedI at its-ends inblocks 44 sliding in slots 45 in thesidespf'saidfhousf, 95 ing. At its lowerend, housing41V is prf vided in its sides withnot'chesor ,'sl'otnsv 46 to permit of vertical adjustments QfSliaft 38, each of the arms 25heing,prvindedvvith a slot 38 to permitvofvth frepassag of 100 Ashaft 38 and verticalladjustments.Athereofl' .10 as will be readily understood.

A. downwardly 'and forwardly inclined discharge chute 49 is `connected with the upper end of housing 41 and leads to a dustbox 50, as shown. An air chute or flue 51 is connected with the upper forward portion of chute 49 and leads to a blower 'housing 52 inclosing a blower fan 53 mounted upon an operatin shaft 54 in said housing.` Shaft 54 is driven through the medium of a sprocket 55, chain 56 and another sprocket 57 on shaft 16, said blower shaft being thrown into and out of operation by means of a clutch 58 on shaft 16 operated by a lever 59 connected by means of a link 60 with a bell crank 61. Bell crank 61 is connected by means of a link 62 with an arm 63 on an operating shaft 64 provided with an operating handle 65 cooperating with a quadrant 66 adjacent the steering wheel 11.

- By this arrangement, it will be observed,

that blower shaft. 53 may be readily thrown into and out of operation. When in operation, the" blower induces a suction upwardly through housings 28 and 41 and flue 51, so

l that the dissemination of dust is prevented and the lighter particles such as paper and fine dust are drawn upwardly through ue 51l while the heavier particles fall through chute 49 into the box 50.

. Another Hue .67 leads from blower hous-A ing 52 into the top of anotherdust box 68 arranged at the rear frame 8. A water tank 69 is arranged on the rear of frame 8, and

is provided with an inlet valve 70 for filling the same with water and an inlet cover 71 b v mean/S of which disinfectant may be supplied to said tank and inspections of the nterior made. An air pump 72 communicates with the top of tank 69 and serves to in- 5o troduce pressure thereinto, said air pump being driven by means of a sprocket 73, chain 74 and sprocket 75 on shaft 76 driven from shaft 16 by means of gears 77. A. pipe 78 leads from the lower rear portion of tank `69 to a sprinkler pipe 79 arranged 1n the upper portion of box 68, and a corresponding pipe leads forwardly from tank 69 to a sprinkler 81 arranged 1n the forward lower portion of chute 49, as indieo cated. By this arrangement, it Win be ebserved that the dust deposited in boxes 50 and 68 may be sprinkled and dis1nfected, as desirezl.-

An angularly positioned brush 82 1s Ye; mounted .upon a shaft 83 to projectangu'- larly from one side of frame 8 to serve as a means for sweeping a gutter and is positioned to. force its sweepings outwardly into the path of brush 27 to be picked up thereby as will be readily understood. Shaft 83 is 70 mounted in a bracket 84 pivoted to swing upwardly -at 85, said shaft carrying a bevel gear 86 engaging with a. bevel gear 87 having a universal joint connection 88 with an operating shaft 89. Shaft 89 is driven by 75 means of a sprocket chain 90 from a sprocket 91 on shaft 16, said sprocket 91 being controlled by a clutch member 92 on said shaft. Clutch member 92 is operatively connected with a bell crank 93 in turn con- 80 nected by a link 94 with an operating arm 95 on an operating shaft 96 provided with an operating arm 97 cooperating with a suitable quadrant l98 adjacent the steering wheel 11. Bracket 84 is provided with a for- 85 wai'dlyextending arm 99 connected by a link 100 with an arm 101 on an oscillatory shaft 102 arranged at the side of frame 8. Shaft 102 is provided with a depending arm 103 connected by means of a link 104 90 with the lower end of an operating arm 105 coperating with a quadrant 105, and by means of which brush 82 may be readily swung upwardly out of operative position.

The brush shaft 26 is driven by means of 95 sprocket chains 106 engaging sprockets 106 on 'shaft 26 and sprockets 107 loosely mounted on shaft 12 and secured to similar sprockets 108 connected by chains 109 with sprocke'ts 110,on shaft 76. Each of the sprockets 100 110 cooperates with a clutch member 111, said members being operated by bell cranks 112 and 112 positioned on opposite sides of frame 8. Bell cranks 112-112 are connected respectively by means of links 105 113-113 with arms 114-4114 on shafts 115-115, said Shafts being provided with operating arms 116-4116 coperating with quadrants 117-117 adjacent the steering wheel 11. By this arrangement, it will be 11o observed that the brush 27 may be readily thrown into and out of operation by the operator whatever the vertical position of said brush.

The conveyer belt 40 is operated through 115 the medium of gears 118 fixed on the opposite ends of shaft 26. and meshing with gears 119 on corresponding stud shafts 120 on the corresponding arms 37. .Shafts 120 are connected by means of sprocket chains 120 121 with sprockets 122 on the opposite ends of shaft 38, so that when brush shaft 26 is operated, conveyer 48 will also be operated to carry'away the sweepings. While I have illustrated and described 125 the preferred form of construction for carrying my' invention .into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not Wish to be limited to the precise details of construction set forth, but

desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

l. A street sweeping machine comprising a main frame; a driving shaft on said frame; a pivotally mounted brush frame carrying a second shaft having a universal joint connection with said driving shaft; a brush on said brush frame operatively connected with said second shaft; and means for adjusting said brush frame, substantially as described.

2. A street sweeping machine comprising a. frame; a main shaft on said frame; a driving shaft on said frame; a pivotally mounted brush frame carrying a second shaft having a universal joint connection with said driving shaft; a brush shaft on said brush frame having a bevel gear connection with said second shaft; a brush on said brush shaft; and means for adjusting said brush frame; substantially as described.

3. A street sweeping machine comprising a' frame; a vertically adjustable support on said frame; a rotary brush on said support; a second support vertically adjustable on said first mentioned support; and a conveyer mounted on said second support adjacent to and cooperating with said brush, substantially as described.

4. A street sweeping machine comprising' a frame; a vertically swinging supportr on said frame; a rotary brush on said support; a second support pivoted for vertical swinging on said first mentioned support; and a conveyer mounted on said second mentioned support adjacent to and cooperating with said brush, substantially as described.

5. A street sweeping machine comprising a wheeled frame; a pair of vertically swinging arms in said frame; a rotating sweeping brush in said arms; a second pair 0f arms pivotally mounted on said first mentioned arms; and a conveyer mounted on said second pair of arms adjacent to and cooperating with said sweeping brush, substantially as described.

6. AA street sweeping machine comprising a wheeled frame; a pair of vertically swinging arms in said frame; a brush shaft mounted in said arms; a rotatable sweeping brush onsaid brush shaft; driving means mounted concentrically with the axis of said swinging arms and operatively'connected with said brush; a second pair of arms pivotally mounted on said brush shaft; and a conveyer roller mounted on the free end of said second pair of arms adjacent to and cooperating with said brush, substantially as described.

7. A street sweeping machine comprising a wheeled frame; a pair of vertically swinging arms in said frame; a brush shaft mounted in said arms; a rotatable sweeping brush on said brush shaft; driving means mounted concentrically with the axis of said swinging arms and operatively connected with said brush; a second pair of arms pivotally mountedon said brush shaft; a conveyer roller mounted on the free end of said second pair of arms adjacent toand cooperating with said brush; a housing surroundingsaid brush and said conveyer; and means for drawing air through said housing, substantially as described.

8. A street sweeping machine comprisin a wheeled frame; a pair of arms mounted on Isaid frame to swing vertically from the axis of .the rear wheels thereof; a brush shaft on said arms; a rotatable sweeping brush on sid brush shaft; driving means mountedconcentrically with the axis. of the rear,wheels ofvsaid frame and operatively connected with said brush shaft; a second pair' of arms pivotally mounted on said brush shaft; a conveyer roller mountedon the free end of said second pair of arms arranged adjacent to and cooperating with said brush; a housing surrounding said brush and said conveyer; a'rack bar and pinion connection with said second pair of arms for adjusting the same; and means for drawing air through said housing7 substantially as described.

In testimony whereof I have signed my name to this specification i n the presence of two subscribing witnesses.

FRANK S. KOCH.

Witnesses:

JOSHUA R. H. Po'r'rs, B. G. RICHARDS. 

